2-1/8 and 1-7/8 in Pistons and Ford Vehicles 1987 to Current with Rear Disc Brakes, 3/8 in Square Drive Tool and 41520 Brake Service Set 2-1/8 and 1-7/8 in Pistons and Ford Vehicles 1987 to Current with Rear Disc Brakes, 3/8 in Square Drive Tool and 41520 Brake Service Set (1)